An adjustable drop plate formwork support system

Abstract

The application relates to the technical field of building engineering, in particular to an adjustable drop plate formwork support system, which comprises a plurality of formwork groups and a plurality of fasteners. The formwork group comprises a first sliding part and a second sliding part which are fixedly connected. The first sliding part intersects with the second sliding part. The first sliding part in the formwork group is in sliding cooperation with the second sliding part in the adjacent formwork group. A plurality of through holes are formed in the first sliding part and the second sliding part. The fastener passes through the through holes and is used for fixing the first sliding part in the formwork group and the second sliding part in the adjacent formwork group together. The construction size of the system can be flexibly adjusted by changing the relative positions of the first sliding part and the second sliding part in the adjacent formwork group. The application has the characteristics of improving the adaptability of the drop plate formwork support system.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to an adjustable lowering formwork support system. Background Technology

[0002] Lowering the floor slab refers to reducing the structural elevation of the floor slab in specific areas such as bathrooms, kitchens, and balconies to achieve functions such as coordinating ground level differences, solving drainage issues on the same floor, and concealing pipelines and equipment. The formwork support system for lowering the floor slab mainly plays a role in bearing construction loads, ensuring structural accuracy, improving overall stability, and ensuring construction safety during construction in the lowered floor slab area.

[0003] In related technologies, the industry typically uses wooden formwork or custom steel formwork for formwork erection in the formwork support system for slab drop. However, due to material strength and cost issues, it has gradually been replaced by lighter, cheaper, and more durable aluminum alloy formwork.

[0004] The existing drop-slab formwork support system has the following problems: aluminum alloy formwork is usually fixed by welding or bolts, and cannot be adjusted after assembly, resulting in poor adaptability. As the construction industry has increasingly higher requirements for construction efficiency and the flexibility of formwork systems, traditional formwork systems can hardly meet the needs of modern construction. Summary of the Invention

[0005] To improve the adaptability of the slab formwork support system, this application provides an adjustable slab formwork support system.

[0006] The adjustable lowering plate formwork support system provided in this application adopts the following technical solution:

[0007] An adjustable lowering template support system includes several template groups and several fasteners. Each template group includes a first sliding member and a second sliding member fixedly connected to each other. The first sliding member and the second sliding member intersect. The first sliding member in the template group slides and engages with the second sliding member in the adjacent template group. Both the first sliding member and the second sliding member have several through holes. The several through holes are arranged at intervals along the length direction of the first sliding member and the second sliding member. The fasteners pass through the through holes in sequence to fix the first sliding member in the template group and the second sliding member in the adjacent template group together to form a mating part.

[0008] By adopting the above scheme, construction personnel can make the first and second sliding parts slide in opposite directions according to the project requirements, so as to adjust the interlocking template group to a suitable length. After fasteners are inserted into the spaced through holes, multi-point locking is formed, which can flexibly adjust the footprint of the system. It can not only resist the lateral pressure during concrete pouring and reduce the occurrence of template deformation or displacement, but also improve the adaptability of the drop slab template support system.

[0009] Preferably, the fastener is configured as a spring locking pin, which includes a spring and a button. The spring is disposed inside the mating part, and the button passes through the through hole and is disposed on the outer wall of the mating part. The bottom of the button is fixedly connected to one end of the spring.

[0010] By adopting the above solution, the spring is compressed when the button is pressed, causing the button to retract, which facilitates the continued sliding of the first and second sliding parts. After the button is released, the spring rebounds, and the button automatically engages with the through hole to complete the locking. No additional tools are required, which improves the efficiency of operation.

[0011] Preferably, the fastener is a ribbed bolt, one end of which is provided with a carrying ring. The ribbed bolt passes through the through hole and is disposed inside the mating part, while the carrying ring is disposed outside the mating part.

[0012] By adopting the above solution, after the construction personnel manually rotate the ribbed bolt to disengage it from the mating part, the first and second sliding parts can continue to slide in opposite directions, saving operation time. The rib structure of the ribbed bolt interlocks with the inner wall of the through hole, improving the anti-loosening performance. The exposed handle ring can serve as a visual indicator of installation completion, making it easy for construction personnel to quickly check whether the fasteners are in place and reducing the occurrence of missed tightening.

[0013] Preferably, the fastener includes a ribbed bolt, a washer, and a hinge. There are at least two hinges arranged opposite each other. The hinges are used to connect the first sliding member in the template group with the second sliding member in the adjacent template group to form a folded part. The washer is fixed to the outer wall of the mating part. One end of the ribbed bolt is provided with a carrying ring. The ribbed bolt passes through the washer and the through hole and is correspondingly provided inside the mating part. The carrying ring is provided outside the mating part.

[0014] By adopting the above scheme, when the hinges facing each other are closed, the system is in a folded state, which is convenient for storage and carrying. When the hinges are opened, the system is in an unfolded state. The gaskets and ribbed bolts enable the side length adjustment and direction fixation of the system.

[0015] Preferably, it also includes corner reinforcement members, which are used to fix the first sliding member and the second sliding member in the template assembly.

[0016] By adopting the above solution, the connection strength between the first and second sliding parts is increased, and the deformation caused by the lateral pressure of concrete is effectively reduced, thereby reducing the occurrence of grout leakage.

[0017] Preferably, it also includes two diagonal bracing members, which intersect each other, and the ends of both diagonal bracing members are threadedly connected to the template assembly.

[0018] By adopting the above scheme, the diagonal bracing components are intersected in the middle of several template groups, which improves the overall strength of the system, reduces the lateral displacement caused by the force during concrete pouring, and the threaded connection improves the stability and assembly efficiency of the diagonal bracing components.

[0019] Preferably, each of the two diagonal bracing members includes an inner ribbed bolt tube and two ribbed positive spiral tubes. The two ribbed positive spiral tubes are respectively threaded to both ends of the inner ribbed bolt tube, and the ends of the two ribbed positive spiral tubes are fixedly connected to the corner reinforcement.

[0020] By adopting the above scheme, the inner ribbed bolt pipe and the positive spiral steel pipe are engaged by threads to achieve stepless length adjustment of the diagonal brace, which can be adapted to the diagonal spacing of different template groups.

[0021] Preferably, the inner ribbed bolt tube has several auxiliary length adjustment holes through its middle section, and these auxiliary length adjustment holes are compatible with a hexagonal wrench.

[0022] By adopting the above scheme, a hex wrench can be inserted into the auxiliary length adjustment hole and rotate the ribbed bolt steel pipe, thereby increasing or decreasing the engagement depth of the two positive spiral steel pipes with the inner ribbed bolt steel pipe, which can be used to adjust the length of the diagonal brace.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By moving the first sliding member and the second sliding member in the adjacent template group in opposite directions, the construction dimensions of the system can be flexibly adjusted. At the same time, the through hole fastening forms a multi-point locking structure, which improves the adaptability of the drop plate template support system.

[0025] 2. Improved system connection strength and stability, effectively resisting the pressure during concrete pouring;

[0026] 3. Improved system convenience and assembly efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 This is a cross-sectional schematic diagram of the first sliding member and the corner reinforcement member of Embodiment 1 of this application.

[0029] Figure 3 This is a schematic diagram of the application scenario of the spring locking pin in Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0031] Figure 5 This is a cross-sectional schematic diagram of the second sliding member in Embodiment 2 of this application.

[0032] Figure 6 This is a schematic diagram of the application scenario of the ribbed bolt in Embodiment 2 of this application.

[0033] Figure 7 This is a schematic diagram of the overall structure of Embodiment 3 of this application.

[0034] Figure 8 This is a schematic diagram of the folded storage of Embodiment 3 of this application.

[0035] Figure 9 This is a schematic diagram of the unfolded embodiment 3 of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Template assembly; 11. First sliding member; 12. Second sliding member; 13. Corner reinforcement; 131. Connecting hole; 14. Through hole; 15. Butt joint; 16. Folding part; 2. Diagonal brace; 21. Ribbed bolt tube; 211. Auxiliary length adjustment hole; 22. Ribbed positive spiral tube; 3. Fastener; 31. Spring locking pin; 311. Spring; 312. Button; 32. Ribbed bolt; 321. Handle ring; 33. Hinge; 34. Washer; 341. Round hole. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0038] This application discloses an adjustable lowering plate formwork support system.

[0039] Example 1:

[0040] Reference Figure 1-3 An adjustable lowering plate template support system includes several template groups 1 and several fasteners 3. Each template group 1 includes a first sliding member 11 and a second sliding member 12 that are fixedly connected. In this embodiment, there are four template groups 1. The first sliding member 11 and the second sliding member 12 are set as the same U-shaped aluminum alloy template. The cross-section of the U-shaped aluminum alloy template has the same thickness of the upper and lower flanges and the U-shaped opening faces inward. The U-shaped aluminum alloy template is set in an L-shaped structure in the length direction.

[0041] Furthermore, the first sliding member 11 is vertically fixed to one end of the second sliding member 12, and the first sliding member 11 slides and engages with the second sliding member 12 in the adjacent template group 1, and the four template groups 1 are sequentially spliced ​​into a square structure.

[0042] Furthermore, the first sliding member 11 and the second sliding member 12 are each provided with a plurality of through holes 14. The plurality of through holes 14 are equidistantly and evenly distributed along the length direction of the first sliding member 11 and the second sliding member 12. The fasteners 3 pass through the through holes 14 in sequence to fix the first sliding member 11 and the second sliding member 12 in the adjacent template group 1 together to form a docking part 15.

[0043] Correspondingly, during construction, the relative positions of the first sliding member 11 and the second sliding member 12 can be changed by sliding them in opposite directions to adjust the assembled template group 1 to a suitable length, thereby flexibly adjusting the construction dimensions of the system. The first sliding member 11 and the second sliding member 12 are provided with equidistant through holes 14, which, together with the fasteners 3, achieve multi-node synchronous locking, meeting the construction needs in different scenarios. This not only resists the lateral pressure during concrete pouring and reduces the occurrence of template deformation or displacement, but also simplifies the on-site installation process and improves the adaptability of the drop slab template support system.

[0044] Specifically, in this embodiment, the fastener 3 is set as a spring 311 locking pin 31. The spring 311 locking pin 31 includes a spring 311 and two buttons 312. The spring 311 is made of steel, and the buttons 312 are made of aluminum alloy. The spring 311 is installed inside the docking part 15. The bottoms of the two buttons 312 are fixedly connected to the two ends of the spring 311 respectively. Both buttons 312 pass through the through hole 14 and are placed on the outer wall of the docking part 15.

[0045] Therefore, the construction worker can compress the spring 311 by pressing the button 312. After the button 312 retracts, the relative position of the first sliding member 11 and the second sliding member 12 that slides with it can be freely adjusted. After releasing the button 312, the spring 311 returns to its original position and drives the button 312 to accurately engage with the through hole 14 to complete the locking, realizing tool-free quick locking and improving operation efficiency.

[0046] On the other hand, it also includes a corner reinforcement 13. In this embodiment, the corner reinforcement 13 is arranged in a V-shaped structure. The corner reinforcement 13 is made of aluminum alloy. A connection hole 131 is opened on the corner reinforcement 13 corresponding to the through hole 14. The first sliding member 11 and the second sliding member 12 in the same template group 1 are fixedly connected by screws.

[0047] Therefore, the corner compressive strength of the template group 1 and the connection stiffness between the first sliding member 11 and the second sliding member 12 are enhanced, effectively reducing the deformation caused by the lateral pressure of the concrete, thereby reducing the occurrence of grout leakage.

[0048] In addition, it includes two diagonal bracing members 2, which are cross-connected in the middle of the square structure formed by the four template groups 1, so that the system is set up as a closed square structure.

[0049] Specifically, in this embodiment, each of the two diagonal bracing members 2 includes an inner ribbed bolt 32 tube 21 and two ribbed positive spiral tubes 22. Both the ribbed positive spiral tubes 22 and the inner ribbed bolt 32 tube 21 are made of steel. The two ribbed positive spiral tubes 22 are threaded to both ends of the inner ribbed bolt 32 tube 21. Construction workers can rotate the inner ribbed bolt 32 tube 21 by hand to make the inner ribbed bolt 32 tube 21 continuously engage with the positive spiral steel pipe, thereby achieving stepless adjustment of the length of the diagonal bracing member 2 to adapt to the diagonal spacing generated by the enclosure of template groups 1 of different lengths.

[0050] Furthermore, the ends of the two ribbed positive spiral tubes 22 are threadedly connected to the corner reinforcement 13, which not only improves the overall strength of the system and reduces the lateral displacement of the system under stress during concrete pouring, but also improves the assembly efficiency of the diagonal brace 2.

[0051] Meanwhile, a number of auxiliary length adjustment holes 211 are provided through the middle of the inner ribbed bolt 32 tube 21. In this embodiment, there are three auxiliary length adjustment holes 211, and all three auxiliary length adjustment holes 211 are compatible with hexagonal wrenches.

[0052] Therefore, construction workers can insert a hex wrench into the auxiliary length adjustment hole 211 and rotate the ribbed bolt 32 steel pipe by moving the hex wrench up and down, thereby increasing or decreasing the engagement depth of the positive spiral steel pipes on both sides and adjusting the length of the diagonal brace 2.

[0053] The implementation principle of an adjustable slab formwork support system according to an embodiment of this application is as follows: the system is moved to the working surface, and the footprint of the system is flexibly changed by the opposing sliding of the first sliding member 11 and the second sliding member 12 in the adjacent formwork group 1. The connecting part 15 is fixed by the spring 311 pin, and the corner reinforcement member 13 is added to improve the connection strength at the corner of the system and reduce the occurrence of grout leakage when pouring concrete. Finally, the diagonal brace 2 is installed for overall reinforcement. The diagonal brace 2 supports manual length adjustment to improve the adaptability of the slab formwork support system.

[0054] Example 2:

[0055] Reference Figure 4-6 The difference from Embodiment 1 is that in this embodiment, the first sliding member 11 and the second sliding member 12 are set as the same U-shaped aluminum alloy template, and the upper flange of the U-shaped aluminum alloy template is thin and the lower flange is thick, and it is set in an L-shaped structure in its length direction.

[0056] Furthermore, in this embodiment, the fastener 3 is provided with a ribbed bolt 32 of the same length as the cross-sectional height of the first sliding member 11. One end of the ribbed bolt 32 is fixed with a handle ring 321. The ribbed bolt 32 passes through the through hole 14 and is built into the docking part 15. At the same time, the handle ring 321 extends out of the outer wall of the docking part 15.

[0057] Therefore, construction workers can rotate the ribbed bolt 32 by turning the handle 321 to make it disengage from the docking part 15. The first sliding part 11 and the second sliding part of the adjacent template group 1 can then continue to slide in opposite directions to adjust the overall fit length of the adjacent template group 1. After the ribbed bolt 32 is reset, it will fix the docking part 15 again. No additional tools are needed, saving operation time.

[0058] Meanwhile, the rib structure of the ribbed bolt 32 increases the contact area between the bolt and the mating part 15 and interlocks with the inner wall of the through hole 14, which not only disperses local stress but also improves the anti-loosening performance of the ribbed bolt 32. The exposed handle 321 can serve as a visual indicator of installation completion, making it easy for construction personnel to quickly check whether the fasteners 3 are in place and reduce the occurrence of missed tightening.

[0059] The implementation principle of an adjustable lowering formwork support system according to an embodiment of this application is as follows: the system is transported to the working surface, and the system is adjusted to a suitable size by the opposing sliding of the first sliding member 11 and the second sliding member 12 in the adjacent formwork group 1. The joint part 15 is assembled and fixed by the ribbed bolts 32, and corner reinforcement members 13 are added to improve the connection strength at the corner of the system and reduce the occurrence of grout leakage when pouring concrete. Finally, the diagonal bracing member 2 is installed for overall reinforcement. The diagonal bracing member 2 supports manual length adjustment to improve the adaptability of the lowering formwork support system.

[0060] Example 3:

[0061] Reference Figure 7-9 The difference from Embodiment 2 is that in this embodiment, the fastener 3 includes a ribbed bolt 32, a washer 34 and a hinge 33. There are two hinges 33. The two ends of the hinge 33 are welded to the thick wing side of the first sliding member 11 and the second sliding member 12 in the adjacent template group 1, respectively, to form two opposing folded parts 16. In order to ensure the connection effect, it is advisable to complete the anti-corrosion and anti-rust treatment before leaving the factory.

[0062] Specifically, in this embodiment, the gasket 34 is rectangular in shape and is installed on the thin wing source side of the U-shaped aluminum alloy template. The gasket 34 has two round holes 341 for installing ribbed bolts 32 to fix the length and direction of the template assembly 1.

[0063] Therefore, closing the opposing hinge 33 puts the system in a folded state, making it easy to store and carry. When the hinge 33 is opened, the system is in an unfolded state. The gasket 34, together with the ribbed bolt 32, enables the side length adjustment and directional fixation of the system.

[0064] The implementation principle of an adjustable slab formwork support system according to an embodiment of this application is as follows: The system is transported to the working surface, and the system is folded and laid flat by unfolding and closing the hinge 33. The first sliding member 11 slides against the second sliding member 12 in the adjacent formwork group 1 to adjust the construction size of the system to a suitable size. The folded part 16 and the connecting part 15 are assembled and fixed simultaneously by using the shims 34 and the ribbed bolts 32, and corner reinforcement members 13 are added to improve the connection strength at the corners of the system and reduce the occurrence of grout leakage when pouring concrete. Finally, the diagonal bracing member 2 is installed for overall reinforcement. The diagonal bracing member 2 supports manual length adjustment to improve the adaptability of the slab formwork support system.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable lowering plate formwork support system, characterized in that, The device includes several template groups (1) and several fasteners (3). Each template group (1) includes a first sliding member (11) and a second sliding member (12) that are fixedly connected. The first sliding member (11) and the second sliding member (12) intersect each other. The first sliding member (11) in the template group (1) slides and engages with the second sliding member (12) in the adjacent template group (1). Both the first sliding member (11) and the second sliding member (12) are provided with several through holes (14). The several through holes (14) are arranged at intervals along the length direction of the first sliding member (11) and the second sliding member (12). The fasteners (3) pass through the through holes (14) in sequence to fix the first sliding member (11) in the template group (1) and the second sliding member (12) in the adjacent template group (1) together to form a mating part (15).

2. The adjustable lowering plate formwork support system according to claim 1, characterized in that, The fastener (3) is configured as a spring (311) locking pin (31), which includes a spring (311) and a button (312). The spring (311) is disposed inside the mating part (15), and the button (312) passes through the through hole (14) and is disposed on the outer wall of the mating part (15). The bottom of the button (312) is fixedly connected to one end of the spring (311).

3. The adjustable lowering plate formwork support system according to claim 1, characterized in that, The fastener (3) is configured as a ribbed bolt (32), one end of which is provided with a handle (321). The ribbed bolt (32) passes through the through hole (14) and is located inside the mating part (15), while the handle (321) is located outside the mating part (15).

4. The adjustable lowering plate formwork support system according to claim 1, characterized in that, The fastener (3) includes a ribbed bolt (32), a washer (34), and a hinge (33). There are at least two hinges (33) arranged opposite to each other. The hinges (33) are used to connect the first sliding member (11) in the template group (1) with the second sliding member (12) in the adjacent template group (1) and form a folded part (16). The washer (34) is fixed to the outer wall of the docking part (15). One end of the ribbed bolt (32) is provided with a handle (321). The ribbed bolt (32) passes through the washer (34) and the through hole (14) and is correspondingly provided inside the docking part (15). The handle (321) is provided outside the docking part (15).

5. An adjustable lowering plate formwork support system according to any one of claims 1-4, characterized in that, It also includes a corner reinforcement (13), which is used to fix the first sliding member (11) and the second sliding member (12) in the template assembly (1).

6. The adjustable lowering plate formwork support system according to claim 5, characterized in that, It also includes two diagonal bracing members (2), which cross each other, and the ends of the two diagonal bracing members (2) are threadedly connected to the template group (1).

7. The adjustable lowering plate formwork support system according to claim 6, characterized in that, Both of the diagonal bracing members (2) include an inner ribbed bolt (32) tube (21) and two ribbed positive spiral tubes (22). The two ribbed positive spiral tubes (22) are threaded to both ends of the inner ribbed bolt (32) tube (21), and the ends of the two ribbed positive spiral tubes (22) are fixedly connected to the corner reinforcement member (13).

8. The adjustable lowering plate formwork support system according to claim 7, characterized in that, The inner ribbed bolt (32) tube (21) has several auxiliary length adjustment holes (211) through its middle section, and the several auxiliary length adjustment holes (211) are adapted to a hexagonal wrench.

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